Hey- that sounds familiar!

     My trek starts with irritatingly loud drilling by some construction guys across the street.  Normally, I would cringe, and possibly cover my ears, but for this exercise, I decided to stop and listen.  Eerily, as I stopped walking, so does the drilling.  I hear them talking to each other, but I'm far away enough not to make out anything decipherable.  I decide to cross 2nd avenue, and head west.  As I wait for the light, I notice the M15 driving past me, and I hear a loud wooosh, like a turbo on a racecar.  I've never noticed that before. 
     I hear 2 dogs barking at each other across the street and they stop and one walks over for a buttsniff.  I hear an ambulance or police car too far away for me to actually see, and actually, physically closing my eyes for a few seconds, I can hear more than one siren!  With so many people around me, it's strange that I can't hear their voices clearly.  The sounds of cars, trucks, and buses drown out everything else.  I cross 2nd avenue slowly and I actually hear the sirens getting louder, but it's a type of siren you don't normally hear in the city.  I look back and see that the siren is coming from a group of black cars donning diplomatic plates, and they're blazing through the bike lane- these are the guys from the UN summit.  I wonder if I can ride on the bike lane later tonight when I head downtown. 
     As I approach Lexington Ave, I can actually begin to put words to the sounds I hear as there are infinitely more people scattered all over the street scrambling for their lunches at 2pm.  There's a ton more traffic here and I hear Spanish music pouring out of a beat up Lincoln Navigator that's seen better days.  I can hear a woman somewhere behind me talking to her child, telling her something about being such a great girl for doing something in school.  I turn around and see that she is talking into her phone.  I also noticed an M57 crossing 57th Street, but the bus did not make the same woosh sound as the M15. 
     I decide to walk uptown on Park and I hear a familiar sound, the sound only my car makes.  I drive a Subaru WRX and the engine makes a very specific exhaust note that all Subaru WRXs make.  I nod to the driver as he comes to a stop and he nods back - it's something we do in the WRX "brotherhood".  Even though I wasn't driving, we just have this kind of sixth sense that we can spot other WRX owners easily.  In the "brotherhood", we take our nodding seriously, and if we both happened to be driving, and I didn't nod to him first, or didn't catch his nod and consequently not nod back, it'd be blasphemous.  Not that there's a secret WRX nod-police patrolling our streets, but that I would simply suffer with the thought of knowing that I ignored a fellow brother on the road.  It's more serious than it sounds.